HELP! 100% - No Platinum

This is a discussion on HELP! 100% - No Platinum within the General PS3 Discussion forum, part of the Everything PlayStation; Got 100% on DBZ: Ultimate Tenkaichi, but no platinum?
Anyone help me so it Dings on the screen for me?...

This happened to another guy before. You'll have to create a new user, copy all of your saves over to it, delete your current user and I believe you need to earn a trophy on the new user before syncing trophies, or just sync your trophies on the new user and boot the game up.

This happened to another guy before. You'll have to create a new user, copy all of your saves over to it, delete your current user and I believe you need to earn a trophy on the new user before syncing trophies, or just sync your trophies on the new user and boot the game up.

This ^

Back up all your saves, preferably via Cloud. Delete the primary account, then recreate the account and earn a trophy offline, then sign up for the PSN with your original details and sync.